gtk2_ardour/editor_audio_import.cc

   1 /*
   2  * Copyright (C) 2006-2014 David Robillard <d@drobilla.net>
   3  * Copyright (C) 2006-2017 Paul Davis <paul@linuxaudiosystems.com>
   4  * Copyright (C) 2006 Taybin Rutkin <taybin@taybin.com>
   5  * Copyright (C) 2007 Tim Mayberry <mojofunk@gmail.com>
   6  * Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
   7  * Copyright (C) 2012-2019 Robin Gareus <robin@gareus.org>
   8  * Copyright (C) 2013-2014 Colin Fletcher <colin.m.fletcher@googlemail.com>
   9  * Copyright (C) 2015-2017 Nick Mainsbridge <mainsbridge@gmail.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License along
  22  * with this program; if not, write to the Free Software Foundation, Inc.,
  23  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  24  */
  25
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <sys/time.h>
  29 #include <errno.h>
  30 #include <unistd.h>
  31 #include <algorithm>
  32
  33 #include <sndfile.h>
  34
  35 #include "pbd/pthread_utils.h"
  36 #include "pbd/basename.h"
  37 #include "pbd/shortpath.h"
  38 #include "pbd/stateful_diff_command.h"
  39
  40 #include "widgets/choice.h"
  41
  42 #include "ardour/audio_track.h"
  43 #include "ardour/audiofilesource.h"
  44 #include "ardour/audioregion.h"
  45 #include "ardour/midi_region.h"
  46 #include "ardour/midi_track.h"
  47 #include "ardour/operations.h"
  48 #include "ardour/profile.h"
  49 #include "ardour/region_factory.h"
  50 #include "ardour/smf_source.h"
  51 #include "ardour/source_factory.h"
  52 #include "ardour/utils.h"
  53 #include "pbd/memento_command.h"
  54
  55 #include "ardour_message.h"
  56 #include "ardour_ui.h"
  57 #include "cursor_context.h"
  58 #include "editor.h"
  59 #include "sfdb_ui.h"
  60 #include "editing.h"
  61 #include "audio_time_axis.h"
  62 #include "midi_time_axis.h"
  63 #include "session_import_dialog.h"
  64 #include "gui_thread.h"
  65 #include "interthread_progress_window.h"
  66 #include "mouse_cursors.h"
  67 #include "editor_cursors.h"
  68
  69 #include "pbd/i18n.h"
  70
  71 using namespace std;
  72 using namespace ARDOUR;
  73 using namespace PBD;
  74 using namespace Gtk;
  75 using namespace Gtkmm2ext;
  76 using namespace Editing;
  77 using std::string;
  78
  79 /* Functions supporting the incorporation of external (non-captured) audio material into ardour */
  80
  81 void
  82 Editor::add_external_audio_action (ImportMode mode_hint)
  83 {
  84         if (_session == 0) {
  85                 ArdourMessageDialog msg (_("You can't import or embed an audiofile until you have a session loaded."));
  86                 msg.run ();
  87                 return;
  88         }
  89
  90         if (sfbrowser == 0) {
  91                 sfbrowser = new SoundFileOmega (_("Add Existing Media"), _session, 0, 0, true, mode_hint);
  92         } else {
  93                 sfbrowser->set_mode (mode_hint);
  94         }
  95
  96         external_audio_dialog ();
  97 }
  98
  99 void
 100 Editor::external_audio_dialog ()
 101 {
 102         vector<string> paths;
 103         uint32_t audio_track_cnt;
 104         uint32_t midi_track_cnt;
 105
 106         if (_session == 0) {
 107                 ArdourMessageDialog msg (_("You can't import or embed an audiofile until you have a session loaded."));
 108                 msg.run ();
 109                 return;
 110         }
 111
 112         audio_track_cnt = 0;
 113         midi_track_cnt = 0;
 114
 115         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
 116                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(*x);
 117
 118                 if (atv) {
 119                         if (atv->is_audio_track()) {
 120                                 audio_track_cnt++;
 121                         }
 122
 123                 } else {
 124                         MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 125
 126                         if (mtv) {
 127                                 if (mtv->is_midi_track()) {
 128                                         midi_track_cnt++;
 129                                 }
 130                         }
 131                 }
 132         }
 133
 134         if (sfbrowser == 0) {
 135                 sfbrowser = new SoundFileOmega (_("Add Existing Media"), _session, audio_track_cnt, midi_track_cnt, true);
 136         } else {
 137                 sfbrowser->reset (audio_track_cnt, midi_track_cnt);
 138         }
 139
 140         sfbrowser->show_all ();
 141 }
 142
 143 void
 144 Editor::session_import_dialog ()
 145 {
 146         SessionImportDialog dialog (_session);
 147         dialog.run ();
 148 }
 149
 150 typedef std::map<PBD::ID,boost::shared_ptr<ARDOUR::Source> > SourceMap;
 151
 152 /**
 153  * Updating is still disabled, see note in libs/ardour/import.cc Session::import_files()
 154  *
 155  * all_or_nothing:
 156  *   true  = show "Update", "Import" and "Skip"
 157  *   false = show "Import", and "Cancel"
 158  *
 159  * Returns:
 160  *     0  To update an existing source of the same name
 161  *     1  To import/embed the file normally (make sure the new name will be unique)
 162  *     2  If the user wants to skip this file
 163  **/
 164 int
 165 Editor::check_whether_and_how_to_import(string path, bool all_or_nothing)
 166 {
 167         string wave_name (Glib::path_get_basename(path));
 168
 169         bool already_exists = false;
 170         uint32_t existing;
 171
 172         if ((existing = _session->count_sources_by_origin (path)) > 0) {
 173                 already_exists = true;
 174         }
 175
 176         int function = 1;
 177
 178         if (already_exists) {
 179                 string message;
 180                 if (all_or_nothing) {
 181                         // updating is still disabled
 182                         //message = string_compose(_("The session already contains a source file named %1. Do you want to update that file (and thus all regions using the file) or import this file as a new file?"),wave_name);
 183                         message = string_compose (_("The session already contains a source file named %1.  Do you want to import %1 as a new file, or skip it?"), wave_name);
 184                 } else {
 185                         message = string_compose (_("The session already contains a source file named %1.  Do you want to import %2 as a new source, or skip it?"), wave_name, wave_name);
 186
 187                 }
 188                 ArdourMessageDialog dialog(message, false, Gtk::MESSAGE_QUESTION, Gtk::BUTTONS_NONE, true);
 189
 190                 if (all_or_nothing) {
 191                         // disabled
 192                         //dialog.add_button("Update", 0);
 193                         dialog.add_button("Import", 1);
 194                         dialog.add_button("Skip",   2);
 195                 } else {
 196                         dialog.add_button("Import", 1);
 197                         dialog.add_button("Cancel", 2);
 198                 }
 199
 200                 //dialog.add_button("Skip all", 4); // All or rest?
 201
 202                 function = dialog.run ();
 203                 dialog.hide();
 204         }
 205
 206         return function;
 207 }
 208
 209 boost::shared_ptr<AudioTrack>
 210 Editor::get_nth_selected_audio_track (int nth) const
 211 {
 212         AudioTimeAxisView* atv;
 213         TrackSelection::iterator x;
 214
 215         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 216
 217                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 218
 219                 if (!atv) {
 220                         continue;
 221                 } else if (atv->is_audio_track()) {
 222                         --nth;
 223                 }
 224         }
 225
 226         if (x == selection->tracks.end()) {
 227                 atv = dynamic_cast<AudioTimeAxisView*>(selection->tracks.back());
 228         } else {
 229                 atv = dynamic_cast<AudioTimeAxisView*>(*x);
 230         }
 231
 232         if (!atv || !atv->is_audio_track()) {
 233                 return boost::shared_ptr<AudioTrack>();
 234         }
 235
 236         return atv->audio_track();
 237 }
 238
 239 boost::shared_ptr<MidiTrack>
 240 Editor::get_nth_selected_midi_track (int nth) const
 241 {
 242         MidiTimeAxisView* mtv;
 243         TrackSelection::iterator x;
 244
 245         for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
 246
 247                 mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 248
 249                 if (!mtv) {
 250                         continue;
 251                 } else if (mtv->is_midi_track()) {
 252                         --nth;
 253                 }
 254         }
 255
 256         if (x == selection->tracks.end()) {
 257                 mtv = dynamic_cast<MidiTimeAxisView*>(selection->tracks.back());
 258         } else {
 259                 mtv = dynamic_cast<MidiTimeAxisView*>(*x);
 260         }
 261
 262         if (!mtv || !mtv->is_midi_track()) {
 263                 return boost::shared_ptr<MidiTrack>();
 264         }
 265
 266         return mtv->midi_track();
 267 }
 268
 269 void
 270 Editor::import_smf_tempo_map (Evoral::SMF const & smf, samplepos_t pos)
 271 {
 272         if (!_session) {
 273                 return;
 274         }
 275
 276         const size_t num_tempos = smf.num_tempos ();
 277
 278         if (num_tempos == 0) {
 279                 return;
 280         }
 281
 282         const samplecnt_t sample_rate = _session->sample_rate ();
 283         TempoMap new_map (sample_rate);
 284         Meter last_meter (4.0, 4.0);
 285         bool have_initial_meter = false;
 286
 287         for (size_t n = 0; n < num_tempos; ++n) {
 288
 289                 Evoral::SMF::Tempo* t = smf.nth_tempo (n);
 290                 assert (t);
 291
 292                 Tempo tempo (t->tempo(), 32.0 / (double) t->notes_per_note);
 293                 Meter meter (t->numerator, t->denominator);
 294                 Timecode::BBT_Time bbt; /* 1|1|0 which is correct for the no-meter case */
 295
 296                 if (have_initial_meter) {
 297                         new_map.add_tempo (tempo, t->time_pulses/ (double)smf.ppqn() / 4.0, 0, MusicTime);
 298                         if (!(meter == last_meter)) {
 299                                 bbt = new_map.bbt_at_quarter_note (t->time_pulses/(double)smf.ppqn());
 300                                 new_map.add_meter (meter, bbt, 0, MusicTime);
 301                         }
 302
 303                 } else {
 304                         new_map.replace_meter (new_map.meter_section_at_sample (0), meter, bbt, pos, AudioTime);
 305                         new_map.replace_tempo (new_map.tempo_section_at_sample (0), tempo, 0.0, pos, AudioTime);
 306                         have_initial_meter = true;
 307
 308                 }
 309
 310                 last_meter = meter;
 311
 312                 cerr << "@ " << t->time_pulses/(double)smf.ppqn() << " ("
 313                      << t->time_seconds << ") Add T " << tempo << " M " << meter << endl;
 314         }
 315
 316         cerr << "NEW MAP:\n";
 317         new_map.dump (cerr);
 318
 319         _session->tempo_map() = new_map;
 320 }
 321
 322 void
 323 Editor::do_import (vector<string>          paths,
 324                    ImportDisposition       disposition,
 325                    ImportMode              mode,
 326                    SrcQuality              quality,
 327                    MidiTrackNameSource     midi_track_name_source,
 328                    MidiTempoMapDisposition smf_tempo_disposition,
 329                    samplepos_t&            pos,
 330                    ARDOUR::PluginInfoPtr   instrument)
 331 {
 332         boost::shared_ptr<Track> track;
 333         vector<string> to_import;
 334         int nth = 0;
 335         bool use_timestamp = (pos == -1);
 336
 337         if (smf_tempo_disposition == SMFTempoUse) {
 338                 /* Find the first MIDI file with a tempo map, and import it
 339                    before we do anything else.
 340                 */
 341
 342                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 343                         Evoral::SMF smf;
 344                         if (smf.open (*a)) {
 345                                 continue;
 346                         }
 347                         if (smf.num_tempos() > 0) {
 348                                 import_smf_tempo_map (smf, pos);
 349                                 smf.close ();
 350                                 break;
 351                         }
 352                         smf.close ();
 353                 }
 354         }
 355
 356         current_interthread_info = &import_status;
 357         import_status.current = 1;
 358         import_status.total = paths.size ();
 359         import_status.all_done = false;
 360         import_status.midi_track_name_source = midi_track_name_source;
 361
 362         ImportProgressWindow ipw (&import_status, _("Import"), _("Cancel Import"));
 363
 364         bool ok = true;
 365
 366         if (disposition == Editing::ImportMergeFiles) {
 367
 368                 /* create 1 region from all paths, add to 1 track,
 369                    ignore "track"
 370                 */
 371
 372                 bool cancel = false;
 373                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 374                         int check = check_whether_and_how_to_import(*a, false);
 375                         if (check == 2) {
 376                                 cancel = true;
 377                                 break;
 378                         }
 379                 }
 380
 381                 if (cancel) {
 382                         ok = false;
 383                 } else {
 384                         ipw.show ();
 385                         ok = (import_sndfiles (paths, disposition, mode, quality, pos, 1, 1, track, false, instrument) == 0);
 386                         import_status.sources.clear();
 387                 }
 388
 389         } else {
 390
 391                 bool replace = false;
 392
 393                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 394
 395                         const int check = check_whether_and_how_to_import (*a, true);
 396
 397                         switch (check) {
 398                         case 2:
 399                                 // user said skip
 400                                 continue;
 401                         case 0:
 402                                 fatal << "Updating existing sources should be disabled!" << endmsg;
 403                                 abort(); /* NOTREACHED*/
 404                                 break;
 405                         case 1:
 406                                 replace = false;
 407                                 break;
 408                         default:
 409                                 fatal << "Illegal return " << check <<  " from check_whether_and_how_to_import()!" << endmsg;
 410                                 abort(); /* NOTREACHED*/
 411                         }
 412
 413                         /* have to reset this for every file we handle */
 414
 415                         if (use_timestamp) {
 416                                 pos = -1;
 417                         }
 418
 419                         ipw.show ();
 420
 421                         switch (disposition) {
 422                         case Editing::ImportDistinctFiles:
 423
 424                                 to_import.clear ();
 425                                 to_import.push_back (*a);
 426
 427                                 if (mode == Editing::ImportToTrack) {
 428                                         track = get_nth_selected_audio_track (nth++);
 429                                 }
 430
 431                                 ok = (import_sndfiles (to_import, disposition, mode, quality, pos, 1, -1, track, replace, instrument) == 0);
 432                                 import_status.sources.clear();
 433                                 break;
 434
 435                         case Editing::ImportDistinctChannels:
 436
 437                                 to_import.clear ();
 438                                 to_import.push_back (*a);
 439
 440                                 ok = (import_sndfiles (to_import, disposition, mode, quality, pos, -1, -1, track, replace, instrument) == 0);
 441                                 import_status.sources.clear();
 442                                 break;
 443
 444                         case Editing::ImportSerializeFiles:
 445
 446                                 to_import.clear ();
 447                                 to_import.push_back (*a);
 448
 449                                 ok = (import_sndfiles (to_import, disposition, mode, quality, pos, 1, 1, track, replace, instrument) == 0);
 450                                 import_status.sources.clear();
 451                                 break;
 452
 453                         case Editing::ImportMergeFiles:
 454                                 // Not entered, handled in earlier if() branch
 455                                 break;
 456                         }
 457                 }
 458         }
 459
 460         if (ok) {
 461                 _session->save_state ("");
 462         }
 463
 464         import_status.all_done = true;
 465 }
 466
 467 void
 468 Editor::do_embed (vector<string> paths, ImportDisposition import_as, ImportMode mode, samplepos_t& pos, ARDOUR::PluginInfoPtr instrument)
 469 {
 470         boost::shared_ptr<Track> track;
 471         bool check_sample_rate = true;
 472         bool ok = false;
 473         vector<string> to_embed;
 474         bool multi = paths.size() > 1;
 475         int nth = 0;
 476         bool use_timestamp = (pos == -1);
 477
 478         switch (import_as) {
 479         case Editing::ImportDistinctFiles:
 480                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 481
 482                         /* have to reset this for every file we handle */
 483                         if (use_timestamp) {
 484                                 pos = -1;
 485                         }
 486
 487                         to_embed.clear ();
 488                         to_embed.push_back (*a);
 489
 490                         if (mode == Editing::ImportToTrack) {
 491                                 track = get_nth_selected_audio_track (nth++);
 492                         }
 493
 494                         if (embed_sndfiles (to_embed, multi, check_sample_rate, import_as, mode, pos, 1, -1, track, instrument) < -1) {
 495                                 goto out;
 496                         }
 497                 }
 498                 break;
 499
 500         case Editing::ImportDistinctChannels:
 501                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 502
 503                         /* have to reset this for every file we handle */
 504                         if (use_timestamp) {
 505                                 pos = -1;
 506                         }
 507
 508                         to_embed.clear ();
 509                         to_embed.push_back (*a);
 510
 511                         if (embed_sndfiles (to_embed, multi, check_sample_rate, import_as, mode, pos, -1, -1, track, instrument) < -1) {
 512                                 goto out;
 513                         }
 514                 }
 515                 break;
 516
 517         case Editing::ImportMergeFiles:
 518                 if (embed_sndfiles (paths, multi, check_sample_rate, import_as, mode, pos, 1, 1, track, instrument) < -1) {
 519                         goto out;
 520                 }
 521                 break;
 522
 523         case Editing::ImportSerializeFiles:
 524                 for (vector<string>::iterator a = paths.begin(); a != paths.end(); ++a) {
 525
 526                         /* have to reset this for every file we handle */
 527                         if (use_timestamp) {
 528                                 pos = -1;
 529                         }
 530
 531                         to_embed.clear ();
 532                         to_embed.push_back (*a);
 533
 534                         if (embed_sndfiles (to_embed, multi, check_sample_rate, import_as, mode, pos, 1, 1, track, instrument) < -1) {
 535                                 goto out;
 536                         }
 537                 }
 538                 break;
 539         }
 540
 541         ok = true;
 542
 543   out:
 544         if (ok) {
 545                 _session->save_state ("");
 546         }
 547 }
 548
 549 int
 550 Editor::import_sndfiles (vector<string>            paths,
 551                          ImportDisposition         disposition,
 552                          ImportMode                mode,
 553                          SrcQuality                quality,
 554                          samplepos_t&              pos,
 555                          int                       target_regions,
 556                          int                       target_tracks,
 557                          boost::shared_ptr<Track>& track,
 558                          bool                      replace,
 559                          ARDOUR::PluginInfoPtr     instrument)
 560 {
 561         import_status.paths = paths;
 562         import_status.done = false;
 563         import_status.cancel = false;
 564         import_status.freeze = false;
 565         import_status.quality = quality;
 566         import_status.replace_existing_source = replace;
 567         import_status.split_midi_channels = (disposition == Editing::ImportDistinctChannels);
 568
 569         import_status.mode = mode;
 570         import_status.pos = pos;
 571         import_status.target_tracks = target_tracks;
 572         import_status.target_regions = target_regions;
 573         import_status.track = track;
 574         import_status.replace = replace;
 575
 576         CursorContext::Handle cursor_ctx = CursorContext::create(*this, _cursors->wait);
 577         gdk_flush ();
 578
 579         /* start import thread for this spec. this will ultimately call Session::import_files()
 580            which, if successful, will add the files as regions to the region list. its up to us
 581            (the GUI) to direct additional steps after that.
 582         */
 583
 584         pthread_create_and_store ("import", &import_status.thread, _import_thread, this);
 585         pthread_detach (import_status.thread);
 586
 587         while (!import_status.done && !import_status.cancel) {
 588                 gtk_main_iteration ();
 589         }
 590
 591         // wait for thread to terminate
 592         while (!import_status.done) {
 593                 gtk_main_iteration ();
 594         }
 595
 596         int result = -1;
 597
 598         if (!import_status.cancel && !import_status.sources.empty()) {
 599                 result = add_sources (
 600                         import_status.paths,
 601                         import_status.sources,
 602                         import_status.pos,
 603                         disposition,
 604                         import_status.mode,
 605                         import_status.target_regions,
 606                         import_status.target_tracks,
 607                         track, false, instrument
 608                         );
 609
 610                 /* update position from results */
 611
 612                 pos = import_status.pos;
 613         }
 614
 615         return result;
 616 }
 617
 618 int
 619 Editor::embed_sndfiles (vector<string>            paths,
 620                         bool                      multifile,
 621                         bool&                     check_sample_rate,
 622                         ImportDisposition         disposition,
 623                         ImportMode                mode,
 624                         samplepos_t&              pos,
 625                         int                       target_regions,
 626                         int                       target_tracks,
 627                         boost::shared_ptr<Track>& track,
 628                         ARDOUR::PluginInfoPtr     instrument)
 629 {
 630         boost::shared_ptr<AudioFileSource> source;
 631         SourceList sources;
 632         string linked_path;
 633         SoundFileInfo finfo;
 634
 635         CursorContext::Handle cursor_ctx = CursorContext::create(*this, _cursors->wait);
 636         gdk_flush ();
 637
 638         for (vector<string>::iterator p = paths.begin(); p != paths.end(); ++p) {
 639
 640                 string path = *p;
 641                 string error_msg;
 642
 643                 /* note that we temporarily truncated _id at the colon */
 644
 645                 if (!AudioFileSource::get_soundfile_info (path, finfo, error_msg)) {
 646                         error << string_compose(_("Editor: cannot open file \"%1\", (%2)"), path, error_msg ) << endmsg;
 647                         return -3;
 648                 }
 649
 650                 if (!finfo.seekable) {
 651                         ArdourMessageDialog msg (string_compose (_("%1\nThis audiofile cannot be embedded. It must be imported!"), short_path (path, 40)), false, Gtk::MESSAGE_ERROR);
 652                         msg.run ();
 653                         return -2;
 654                 }
 655
 656                 if (check_sample_rate  && (finfo.samplerate != (int) _session->sample_rate())) {
 657                         vector<string> choices;
 658
 659                         if (multifile) {
 660                                 choices.push_back (_("Cancel entire import"));
 661                                 choices.push_back (_("Don't embed it"));
 662                                 choices.push_back (_("Embed all without questions"));
 663
 664                                 ArdourWidgets::Choice rate_choice (
 665                                         _("Sample rate"),
 666                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"),
 667                                                         short_path (path, 40)),
 668                                         choices, false
 669                                         );
 670
 671                                 int resx = rate_choice.run ();
 672
 673                                 switch (resx) {
 674                                 case 0: /* stop a multi-file import */
 675                                         return -2;
 676                                 case 1: /* don't embed this one */
 677                                         return -1;
 678                                 case 2: /* do it, and the rest without asking */
 679                                         check_sample_rate = false;
 680                                         break;
 681                                 case 3: /* do it */
 682                                         break;
 683                                 default:
 684                                         return -2;
 685                                 }
 686                         } else {
 687                                 choices.push_back (_("Cancel"));
 688                                 choices.push_back (_("Embed it anyway"));
 689
 690                                 ArdourWidgets::Choice rate_choice (
 691                                         _("Sample rate"),
 692                                         string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"), path),
 693                                         choices, false
 694                                         );
 695
 696                                 int resx = rate_choice.run ();
 697
 698                                 switch (resx) {
 699                                 case 0: /* don't import */
 700                                         return -1;
 701                                 case 1: /* do it */
 702                                         break;
 703                                 default:
 704                                         return -2;
 705                                 }
 706                         }
 707                 }
 708
 709                 for (int n = 0; n < finfo.channels; ++n) {
 710
 711                         try {
 712
 713                                 /* check if we have this thing embedded already */
 714
 715                                 boost::shared_ptr<Source> s;
 716
 717                                 if ((s = _session->audio_source_by_path_and_channel (path, n)) == 0) {
 718
 719                                         source = boost::dynamic_pointer_cast<AudioFileSource> (
 720                                                 SourceFactory::createExternal (DataType::AUDIO, *_session,
 721                                                                                path, n,
 722                                                                                (mode == ImportAsTapeTrack
 723                                                                                 ? Source::Destructive
 724                                                                                 : Source::Flag (0)),
 725                                                                         true, true));
 726                                 } else {
 727                                         source = boost::dynamic_pointer_cast<AudioFileSource> (s);
 728                                 }
 729
 730                                 sources.push_back(source);
 731                         }
 732
 733                         catch (failed_constructor& err) {
 734                                 error << string_compose(_("could not open %1"), path) << endmsg;
 735                                 return -3;
 736                         }
 737
 738                         gtk_main_iteration();
 739                 }
 740         }
 741
 742         if (!sources.empty()) {
 743                 return add_sources (paths, sources, pos, disposition, mode, target_regions, target_tracks, track, true, instrument);
 744         }
 745
 746         return 0;
 747 }
 748
 749 int
 750 Editor::add_sources (vector<string>            paths,
 751                      SourceList&               sources,
 752                      samplepos_t&              pos,
 753                      ImportDisposition         disposition,
 754                      ImportMode                mode,
 755                      int                       target_regions,
 756                      int                       target_tracks,
 757                      boost::shared_ptr<Track>& track,
 758                      bool                      /*add_channel_suffix*/,
 759                      ARDOUR::PluginInfoPtr     instrument)
 760 {
 761         vector<boost::shared_ptr<Region> > regions;
 762         string region_name;
 763         uint32_t input_chan = 0;
 764         uint32_t output_chan = 0;
 765         bool use_timestamp;
 766         vector<string> track_names;
 767
 768         use_timestamp = (pos == -1);
 769
 770         // kludge (for MIDI we're abusing "channel" for "track" here)
 771         if (SMFSource::safe_midi_file_extension (paths.front())) {
 772                 target_regions = -1;
 773         }
 774
 775         if (target_regions == 1) {
 776
 777                 /* take all the sources we have and package them up as a region */
 778
 779                 region_name = region_name_from_path (paths.front(), (sources.size() > 1), false);
 780
 781                 /* we checked in import_sndfiles() that there were not too many */
 782
 783                 while (RegionFactory::region_by_name (region_name)) {
 784                         region_name = bump_name_once (region_name, '.');
 785                 }
 786
 787                 PropertyList plist;
 788
 789                 plist.add (ARDOUR::Properties::start, 0);
 790                 plist.add (ARDOUR::Properties::length, sources[0]->length (pos));
 791                 plist.add (ARDOUR::Properties::name, region_name);
 792                 plist.add (ARDOUR::Properties::layer, 0);
 793                 plist.add (ARDOUR::Properties::whole_file, true);
 794                 plist.add (ARDOUR::Properties::external, true);
 795
 796                 boost::shared_ptr<Region> r = RegionFactory::create (sources, plist);
 797
 798                 if (use_timestamp && boost::dynamic_pointer_cast<AudioRegion>(r)) {
 799                         boost::dynamic_pointer_cast<AudioRegion>(r)->special_set_position(sources[0]->natural_position());
 800                 }
 801
 802                 regions.push_back (r);
 803
 804                 /* if we're creating a new track, name it after the cleaned-up
 805                  * and "merged" region name.
 806                  */
 807
 808                 track_names.push_back (region_name);
 809
 810         } else if (target_regions == -1 || target_regions > 1) {
 811
 812                 /* take each source and create a region for each one */
 813
 814                 SourceList just_one;
 815                 SourceList::iterator x;
 816                 uint32_t n;
 817
 818                 for (n = 0, x = sources.begin(); x != sources.end(); ++x, ++n) {
 819
 820                         just_one.clear ();
 821                         just_one.push_back (*x);
 822
 823                         boost::shared_ptr<FileSource> fs = boost::dynamic_pointer_cast<FileSource> (*x);
 824
 825                         if (sources.size() > 1 && disposition == ImportDistinctChannels) {
 826
 827                                 /* generate a per-channel region name so that things work as
 828                                  * intended
 829                                  */
 830
 831                                 string path;
 832
 833                                 if (fs) {
 834                                         region_name = basename_nosuffix (fs->path());
 835                                 } else {
 836                                         region_name = (*x)->name();
 837                                 }
 838
 839                                 if (sources.size() == 2) {
 840                                         if (n == 0) {
 841                                                 region_name += "-L";
 842                                         } else {
 843                                                 region_name += "-R";
 844                                         }
 845                                 } else if (sources.size() > 2) {
 846                                         region_name += string_compose ("-%1", n+1);
 847                                 }
 848
 849                                 track_names.push_back (region_name);
 850
 851                         } else {
 852                                 if (fs) {
 853                                         region_name = region_name_from_path (fs->path(), false, false, sources.size(), n);
 854                                 } else {
 855                                         region_name = (*x)->name();
 856                                 }
 857
 858                                 if (SMFSource::safe_midi_file_extension (paths.front())) {
 859                                         string track_name = string_compose ("%1-t%2", PBD::basename_nosuffix (fs->path()), (n + 1));
 860                                         track_names.push_back (track_name);
 861                                 } else {
 862                                         track_names.push_back (PBD::basename_nosuffix (paths[n]));
 863                                 }
 864                         }
 865
 866                         PropertyList plist;
 867
 868                         /* Fudge region length to ensure it is non-zero; make it 1 beat at 120bpm
 869                            for want of a better idea.  It can't be too small, otherwise if this
 870                            is a MIDI region the conversion from samples -> beats -> samples will
 871                            round it back down to 0 again.
 872                         */
 873                         samplecnt_t len = (*x)->length (pos);
 874                         if (len == 0) {
 875                                 len = (60.0 / 120.0) * _session->sample_rate ();
 876                         }
 877
 878                         plist.add (ARDOUR::Properties::start, 0);
 879                         plist.add (ARDOUR::Properties::length, len);
 880                         plist.add (ARDOUR::Properties::name, region_name);
 881                         plist.add (ARDOUR::Properties::layer, 0);
 882                         plist.add (ARDOUR::Properties::whole_file, true);
 883                         plist.add (ARDOUR::Properties::external, true);
 884
 885                         boost::shared_ptr<Region> r = RegionFactory::create (just_one, plist);
 886
 887                         if (use_timestamp && boost::dynamic_pointer_cast<AudioRegion>(r)) {
 888                                 boost::dynamic_pointer_cast<AudioRegion>(r)->special_set_position((*x)->natural_position());
 889                         }
 890
 891                         regions.push_back (r);
 892                 }
 893         }
 894
 895         if (target_regions == 1) {
 896                 input_chan = regions.front()->n_channels();
 897         } else {
 898                 if (target_tracks == 1) {
 899                         input_chan = regions.size();
 900                 } else {
 901                         input_chan = 1;
 902                 }
 903         }
 904
 905         if (Config->get_output_auto_connect() & AutoConnectMaster) {
 906                 output_chan = (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan);
 907         } else {
 908                 output_chan = input_chan;
 909         }
 910
 911         int n = 0;
 912         samplepos_t rlen = 0;
 913
 914         begin_reversible_command (Operations::insert_file);
 915
 916         /* we only use tracks names when importing to new tracks, but we
 917          * require that one is defined for every region, just to keep
 918          * the API simpler.
 919          */
 920         assert (regions.size() == track_names.size());
 921
 922         for (vector<boost::shared_ptr<Region> >::iterator r = regions.begin(); r != regions.end(); ++r, ++n) {
 923                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (*r);
 924
 925                 if (use_timestamp) {
 926                         if (ar) {
 927
 928                                 /* get timestamp for this region */
 929
 930                                 const boost::shared_ptr<Source> s (ar->sources().front());
 931                                 const boost::shared_ptr<AudioSource> as = boost::dynamic_pointer_cast<AudioSource> (s);
 932
 933                                 assert (as);
 934
 935                                 if (as->natural_position() != 0) {
 936                                         pos = as->natural_position();
 937                                 } else if (target_tracks == 1) {
 938                                         /* hmm, no timestamp available, put it after the previous region
 939                                          */
 940                                         if (n == 0) {
 941                                                 pos = get_preferred_edit_position ();
 942                                         } else {
 943                                                 pos += rlen;
 944                                         }
 945                                 } else {
 946                                         pos = get_preferred_edit_position ();
 947                                 }
 948                         } else {
 949                                 /* should really get first position in MIDI file, but for now, use edit position*/
 950                                 pos = get_preferred_edit_position ();
 951                         }
 952                 }
 953
 954                 finish_bringing_in_material (*r, input_chan, output_chan, pos, mode, track, track_names[n], instrument);
 955
 956                 rlen = (*r)->length();
 957
 958                 if (target_tracks != 1) {
 959                         track.reset ();
 960                 } else {
 961                         if (!use_timestamp || !ar) {
 962                                 /* line each one up right after the other */
 963                                 pos += (*r)->length();
 964                         }
 965                 }
 966         }
 967
 968         commit_reversible_command ();
 969
 970         /* setup peak file building in another thread */
 971
 972         for (SourceList::iterator x = sources.begin(); x != sources.end(); ++x) {
 973                 SourceFactory::setup_peakfile (*x, true);
 974         }
 975
 976         return 0;
 977 }
 978
 979 int
 980 Editor::finish_bringing_in_material (boost::shared_ptr<Region> region,
 981                                      uint32_t                  in_chans,
 982                                      uint32_t                  out_chans,
 983                                      samplepos_t&               pos,
 984                                      ImportMode                mode,
 985                                      boost::shared_ptr<Track>& existing_track,
 986                                      const string&             new_track_name,
 987                                      ARDOUR::PluginInfoPtr     instrument)
 988 {
 989         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
 990         boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(region);
 991
 992         switch (mode) {
 993         case ImportAsRegion:
 994                 /* relax, its been done */
 995                 break;
 996
 997         case ImportToTrack:
 998         {
 999                 if (!existing_track) {
1000
1001                         if (ar) {
1002                                 existing_track = get_nth_selected_audio_track (0);
1003                         } else if (mr) {
1004                                 existing_track = get_nth_selected_midi_track (0);
1005                         }
1006
1007                         if (!existing_track) {
1008                                 return -1;
1009                         }
1010                 }
1011
1012                 boost::shared_ptr<Playlist> playlist = existing_track->playlist();
1013                 boost::shared_ptr<Region> copy (RegionFactory::create (region, region->properties()));
1014                 playlist->clear_changes ();
1015                 playlist->add_region (copy, pos);
1016                 if (Config->get_edit_mode() == Ripple)
1017                         playlist->ripple (pos, copy->length(), copy);
1018
1019                 _session->add_command (new StatefulDiffCommand (playlist));
1020                 break;
1021         }
1022
1023         case ImportAsTrack:
1024         {
1025                 if (!existing_track) {
1026                         if (ar) {
1027                                 list<boost::shared_ptr<AudioTrack> > at (_session->new_audio_track (in_chans, out_chans, 0, 1, string(), PresentationInfo::max_order, Normal));
1028
1029                                 if (at.empty()) {
1030                                         return -1;
1031                                 }
1032                                 if (Config->get_strict_io ()) {
1033                                         for (list<boost::shared_ptr<AudioTrack> >::iterator i = at.begin(); i != at.end(); ++i) {
1034                                                 (*i)->set_strict_io (true);
1035                                         }
1036                                 }
1037
1038                                 existing_track = at.front();
1039                         } else if (mr) {
1040                                 list<boost::shared_ptr<MidiTrack> > mt (
1041                                         _session->new_midi_track (ChanCount (DataType::MIDI, 1),
1042                                                                   ChanCount (DataType::MIDI, 1),
1043                                                                   Config->get_strict_io () || Profile->get_mixbus (),
1044                                                                   instrument, (Plugin::PresetRecord*) 0,
1045                                                                   (RouteGroup*) 0,
1046                                                                   1,
1047                                                                   string(),
1048                                                                   PresentationInfo::max_order));
1049
1050                                 if (mt.empty()) {
1051                                         return -1;
1052                                 }
1053
1054                                 // TODO set strict_io from preferences
1055                                 existing_track = mt.front();
1056                         }
1057
1058                         if (!new_track_name.empty()) {
1059                                 existing_track->set_name (new_track_name);
1060                         } else {
1061                                 existing_track->set_name (region->name());
1062                         }
1063                 }
1064
1065                 boost::shared_ptr<Playlist> playlist = existing_track->playlist();
1066                 boost::shared_ptr<Region> copy (RegionFactory::create (region, true));
1067                 playlist->clear_changes ();
1068                 playlist->add_region (copy, pos);
1069                 _session->add_command (new StatefulDiffCommand (playlist));
1070                 break;
1071         }
1072
1073         case ImportAsTapeTrack:
1074         {
1075                 if (!ar) {
1076                         return -1;
1077                 }
1078
1079                 list<boost::shared_ptr<AudioTrack> > at (_session->new_audio_track (in_chans, out_chans, 0, 1, string(), PresentationInfo::max_order, Destructive));
1080                 if (!at.empty()) {
1081                         boost::shared_ptr<Playlist> playlist = at.front()->playlist();
1082                         boost::shared_ptr<Region> copy (RegionFactory::create (region, true));
1083                         playlist->clear_changes ();
1084                         playlist->add_region (copy, pos);
1085                         _session->add_command (new StatefulDiffCommand (playlist));
1086                 }
1087                 if (Config->get_strict_io ()) {
1088                         for (list<boost::shared_ptr<AudioTrack> >::iterator i = at.begin(); i != at.end(); ++i) {
1089                                 (*i)->set_strict_io (true);
1090                         }
1091                 }
1092                 break;
1093         }
1094         }
1095
1096         return 0;
1097 }
1098
1099 void *
1100 Editor::_import_thread (void *arg)
1101 {
1102         SessionEvent::create_per_thread_pool ("import events", 64);
1103
1104         Editor *ed = (Editor *) arg;
1105         return ed->import_thread ();
1106 }
1107
1108 void *
1109 Editor::import_thread ()
1110 {
1111         _session->import_files (import_status);
1112         return 0;
1113 }